int
lmt_ost_string_v2 (pctx_t ctx, char *s, int len)
{
static uint64_t cpuused = 0, cputot = 0;
ListIterator itr = NULL;
List ostlist = NULL;
struct utsname uts;
double cpupct, mempct;
int used, n, retval = -1;
char *name;
if (proc_lustre_ostlist (ctx, &ostlist) < 0)
goto done;
if (list_count (ostlist) == 0) {
errno = 0;
goto done;
}
if (uname (&uts) < 0) {
err ("uname");
goto done;
}
if (proc_stat2 (ctx, &cpuused, &cputot, &cpupct) < 0) {
if (lmt_conf_get_proto_debug ())
err ("error reading cpu usage from proc");
goto done;
}
if (_get_mem_usage (ctx, &mempct) < 0)
goto done;
n = snprintf (s, len, "2;%s;%f;%f;",
uts.nodename,
cpupct,
mempct);
if (n >= len) {
if (lmt_conf_get_proto_debug ())
msg ("string overflow");
goto done;
}
itr = list_iterator_create (ostlist);
while ((name = list_next (itr))) {
used = strlen (s);
if (_get_oststring_v2 (ctx, name, s + used, len - used) < 0)
goto done;
}
retval = 0;
done:
if (itr)
list_iterator_destroy (itr);
if (ostlist)
list_destroy (ostlist);
return retval;
}
int
lmt_mdt_string_v1 (pctx_t ctx, char *s, int len)
{
static uint64_t cpuused = 0, cputot = 0;
struct utsname uts;
int n, used, retval = -1;
double cpupct, mempct;
List mdtlist = NULL;
ListIterator itr = NULL;
char *name;
if (proc_lustre_mdtlist (ctx, &mdtlist) < 0)
goto done;
if (list_count (mdtlist) == 0) {
errno = 0;
goto done;
}
if (uname (&uts) < 0) {
err ("uname");
goto done;
}
if (proc_stat2 (ctx, &cpuused, &cputot, &cpupct) < 0) {
if (lmt_conf_get_proto_debug ())
err ("error reading cpu usage from proc");
goto done;
}
if (_get_mem_usage (ctx, &mempct) < 0) {
goto done;
}
n = snprintf (s, len, "1;%s;%f;%f;", uts.nodename, cpupct, mempct);
if (n >= len) {
if (lmt_conf_get_proto_debug ())
msg ("string overflow");
goto done;
}
itr = list_iterator_create (mdtlist);
while ((name = list_next (itr))) {
used = strlen (s);
if (_get_mdtstring (ctx, name, s + used, len - used) < 0)
goto done;
}
if (s[strlen (s) - 1] == ';') /* chomp traling semicolon */
s[strlen (s) - 1] = '\0';
retval = 0;
done:
if (itr)
list_iterator_destroy (itr);
if (mdtlist)
list_destroy (mdtlist);
return retval;
}
static int
_sysstat (pctx_t ctx, char *buf, int len)
{
static uint64_t cpuusage = 0, cputot = 0;
double cpupct, mempct;
uint64_t ktot, kfree;
int ret = -1;
if (proc_stat2 (ctx, &cpuusage, &cputot, &cpupct) < 0)
goto done;
if (proc_meminfo (ctx, &ktot, &kfree) < 0)
goto done;
mempct = ((double)(ktot - kfree) / (double)(ktot)) * 100.0;
snprintf (buf, len, "cpu_util: %.2f%% mem_util: %.2f%%", cpupct, mempct);
ret = 0;
done:
return ret;
}
int
lmt_client_string (pctx_t ctx, char *s, int len)
{
static uint64_t cpuused = 0, cputot = 0;
struct utsname uts;
double cpupct, mempct;
int n, retval = -1, lustre_mounted = 0;
hash_t stats_hash = NULL;
uint64_t read_bytes = 0, write_bytes = 0;
uint64_t read_count = 0, write_count = 0;
uint64_t open_count = 0, close_count = 0;
uint64_t getattr_count = 0, setattr_count = 0;
uint64_t seek_count = 0, fsync_count = 0;
uint64_t dhits_count = 0, dmisses_count = 0;
char *path_base = "/proc/fs/lustre/llite", stats_file[256], name[256];
DIR *d = NULL;
struct dirent *dir;
d = opendir(path_base);
if (d != NULL) {
lustre_mounted = 1;
while ((dir = readdir(d)) != NULL) {
if (!strncmp(dir->d_name, ".", 1)) continue;
strcpy(name, dir->d_name);
}
}
closedir(d);
if (uname (&uts) < 0) {
err ("uname");
goto done;
}
if (proc_stat2 (ctx, &cpuused, &cputot, &cpupct) < 0) {
err ("error reading cpu usage from proc");
goto done;
}
if (_get_mem_usage (ctx, &mempct) < 0)
goto done;
sprintf(stats_file, "%s/%s/stats", path_base, name);
if (lustre_mounted && !access(stats_file, R_OK)) {
if (proc_lustre_hashstats (ctx, name, &stats_hash) < 0) {
err ("error reading lustre %s stats from proc", name);
goto done;
}
proc_lustre_parsestat (stats_hash, "read_bytes", NULL, NULL, NULL,
&read_bytes, NULL);
proc_lustre_parsestat (stats_hash, "read_bytes", &read_count, NULL, NULL,
NULL, NULL);
proc_lustre_parsestat (stats_hash, "write_bytes", NULL, NULL, NULL,
&write_bytes, NULL);
proc_lustre_parsestat (stats_hash, "write_bytes", &write_count, NULL, NULL,
NULL, NULL);
proc_lustre_parsestat (stats_hash, "open", &open_count, NULL, NULL,
NULL, NULL);
proc_lustre_parsestat (stats_hash, "close", &close_count, NULL, NULL,
NULL, NULL);
proc_lustre_parsestat (stats_hash, "getattr", &getattr_count, NULL, NULL,
NULL, NULL);
proc_lustre_parsestat (stats_hash, "setattr", &setattr_count, NULL, NULL,
NULL, NULL);
proc_lustre_parsestat (stats_hash, "seek", &seek_count, NULL, NULL,
NULL, NULL);
proc_lustre_parsestat (stats_hash, "fsync", &fsync_count, NULL, NULL,
NULL, NULL);
proc_lustre_parsestat (stats_hash, "dirty_pages_hits", &dhits_count, NULL, NULL,
NULL, NULL);
proc_lustre_parsestat (stats_hash, "dirty_pages_misses", &dmisses_count, NULL, NULL,
NULL, NULL);
}
n = snprintf (s, len, "%f;%f"
";%"PRIu64";%"PRIu64";%"PRIu64";%"PRIu64
";%"PRIu64";%"PRIu64";%"PRIu64";%"PRIu64
";%"PRIu64";%"PRIu64";%"PRIu64";%"PRIu64,
cpupct, mempct,
read_bytes, read_count, write_bytes, write_count,
open_count, close_count, getattr_count, setattr_count,
seek_count, fsync_count, dhits_count, dmisses_count);
if (n >= len) {
msg ("string overflow");
goto done;
}
retval = 0;
done:
return retval;
}
